group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
6 | 33 | 3 | 19 | 9.81 | 113.07 | -27.20 | 79.15 | 0.4604 | 646.8 | -6.5 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
6 | 17 | 3 | 9 | 10.22 | 114.49 | -25.78 | 77.88 | 0.4396 | 938.6 | 725.6 | |
0 | 7 | 0 | 4 | 9.16 | 112.06 | -28.21 | 80.83 | 0.4747 | -835.0 | -682.2 | |
0 | 5 | 0 | 3 | 9.83 | 111.81 | -28.46 | 79.49 | 0.4794 | -876.0 | -727.5 | |
0 | 4 | 0 | 3 | 9.45 | 111.44 | -28.83 | 80.35 | 0.4845 | -725.0 | -580.8 |
Proj. U | - Projected umbra area in millionths of solar disc, negative values indicate | |
that the umbra consists of fragmented regions which cannot be separated without losing umbral area. In this way several spots (intensity minima in the umbra) have a common umbra, e.g. -2 means that the given spot shares an umbra with spot No.2, and the common U value is indicated at spot No.2. |
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Proj. WS | - Projected whole spot area in millionths of solar disc, negative values indicate | |
that several umbras have a common penumbra, e.g. -7 means that the given umbra shares a penumbra with umbra No.7, and the WS value is indicated at No.7. |
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Corr. U | - Corrected umbra area in millionths of solar hemisphere, for negative values see above | |
Corr. WS | - Corrected whole spot area in millionths of solar hemisphere, for negative values see above | |
B | - Heliographic latitude B; positive: North, negative: South | |
L | - Heliographic longitude L | |
LCM | - Longitudinal distance from the Sun's central meridian | |
Pos. angle | - Position angle | |
r | - Distance from the centre of Sun's disc in terms of Sun's radius | |
MU | - Mean magnetic field within the umbra contour averaged the pixel values with sign. | |
MP | - Mean magnetic field within the penumbra contour averaged the pixel values with sign. |